Process of manufacturing stoppers.



No.' 659,505. Patented Oct. 9, I900.

A; BLUMER.

PROCESS OF MANUFACTURING STOPPERS.

(Application filed Feb. 27, 1599.

(In Iodel.)

J2 ml UNITED STATES PATENT OFFICE.

ARTHUR BLUMER, OF LA VARENNE, FRANCE.

' PROCESS OF MANUFACTURING STOPPERS.

SPECIFICATION forming part of Letters Patent N 0. 659,505, dated October 9, 1900.

Application filed February 27, 1899. Serial No. 707,102. (No specimens.)

To all whom it may concern:

Be it known that LARTHUR BLUMER, a citizen of the Swiss Confederation, residing at La Varenne, St. Hilaire, Seine, France, have invented certain new and useful Improvemeutsin Processes of Manufacturing Stoppers, of which the following is a specification.

This invention relates to stoppers for hottles and the like, and has for its object to construct a stopper which may be both gas and water proof and as such will be particularly adapted for usein bottling wines, spirits, and

the like.

In the drawings, Figure 1 is a side view of astopperconstructed of my composition. Fig. 2 is a plan view thereof.

According to this invention I construct a stopper A of finely-divided corkand nitrocellulose made into ahomogeneous mass and saturated with a fatty mineral oil, such as paraffin or paraiiin and Vaseline. I take cork reduced to a powder and mix it with collodion and press the compound into molds. The proportions preferably employed are as follows: Five and a half parts of cork, ten parts of solution of collodion containing one part of nitrocellulose, (containing the usual quantity of waterviz., forty to fifty per cent.) and ten parts of acetone. The mass after being pressed in the molds and dried is out into pieces of the form of stoppers, but having somewhat larger dimensions than these stoppers are to have finally. The pieces are now treated with a five-per-cent. solution of nitrocellulose in pure acetone under an atmospheric pressure which varies according to the thickness of the stoppers and the hardness which it is required to give them. When this operation is completed, the stoppers are dried and then reduced to their final dimensions by turning and polishing. The stoppers are now impregnated with refined paraffin or a mixture of paraflin and Vaseline. This last process may be accomplished in various ways according to the extent to which it is desired to impregnate the stoppers. They may, for example, be simply immersedin the melted compound for a few minutes and then heated to drive the fatty substance into the interior of the material. The articles are finally finished by polishing with talc powder with or without the aid of Vaseline.

It is to be understood that the above-mentioned proportions may be varied as found necessary.

I claim- 1. The herein-described method in the manufacture of stoppers, which consists in mixing powdered cork with a collodion solution as described, then compressing the mixture and allowing it to dry, then treating the mixture with a solution of nitrocellulose and agetoneja'nd then saturating the mixtu'Fe witha fatty mineral oil.

2. The herein-described method in the manufacture of stoppers, which consists in mixing powdered cork with collodion solution as described, then compressing the mixture and allowing it to dry, then treating the mixture with a solution of nitrocellulose and acetone under pressure, and then saturating the mixture with a fatty mi eralmoil.

In witness whereof I have hereto set my hand in the presence of two subscribing witnesses.

ARTHUR BLUlVI ER.

VVit-nesses:

EDWARD P. MAOLEAN, GEORGE E. LIGHT. 

